How about this for a plan Annie. If your son can source some timber for one long raised bed, you could host a 'Barbeque and Build-a-bed' event at yours for CSSA members - bring your own everything from food to compost, topsoil and manure. Before the barbeque is ready, everyone helps to build the bed - extra tall so you don't have to lean down too far or get on your knees to work it. Put a layer of gravel in the bottom for extra drainage (you've got plenty
) and to fill any extra depth, then add in all the donated topsoil, compost and lovely well-rotted FYM. This needs someone to organise other than you....Happy Hippy's organisational and inspirational skills are legendary
. I will volunteer a sack each of my super topsoil and well rotted sheep manure, plus some back copies of Kitchen Garden magazine to get things started.
Just go for one bed initially so you can see how you go. This year, by the time it's built, you might only manage salad crops, but that would give it time to settle and be ready for more stuff next year. You could grow all the carrots, beetroot, salads, courgette, herbs and so on that you would eat in a year in a bed about 8 or 10 feet long. For disguising the beds, you could either paint the outsides or weave willow and hedgerow twigs into pretty cover-up panels. Do you think that could work?
Another cheap but cheerful idea again relies on your son to do the initial sourcing, but he should be able to find blue barrels easily, for about £10 each. One could be set up on a plinth, with the base higher than the top of your raised bed, to catch rainwater from your garage/doghouse roof. Attach a hose and you won't have to lug watering cans around the place. Others could be cut in half or thirds with holes drilled in the bottom, painted in cheery colours to suit your scheme, then planted up with herbs, fruit trees, tomatoes etc. Siting on the gravel would mean they were well drained and safe from the dogs, and easy to reach in all weathers.
For your new tomato plants, they are probably too cold in an unheated conservatory, unless it is consistently above about 10-14 degrees.